Home / 1,246.61-1,869.91-1,086.23

Finding the Fourth Proportional to 1,246.61, 1,869.91 and 1,086.23

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Solution

The fourth proportional to 1,246.61, 1,869.91 and 1,086.23 is: 1,629.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.61 : 1,869.91 = 1,086.23 : x
  2. Step 2: Convert to fraction form
    1,246.61/1,869.91 = 1,086.23/x
  3. Step 3: Cross multiply
    1,246.61x = 1,869.91 × 1,086.23
  4. Step 4: Simplify right side
    1,246.61x = 2,031,152.34
  5. Step 5: Solve for x
    x = 2,031,152.34/1,246.61
  6. Step 6: Final answer
    x = 1,629.34

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.